======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '1581'
                                          'artist'  'Focus'
                                     'text_people'  ''
                                         'release'  'Progsoup 42'
                                           'title'  'Anonymus II'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-2', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['dutch', '70s', 'instrumental', 'rock', 'progressive rock', 'classic rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '15'
                                      'tracktotal'  '9'
                                            'date'  '1973'
                                        'comments'  ''
                                           'genre'  'rock-cppex-progressive'
                                             'bpm'  '117.330'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

======================== rawer (from filesystem) ========================

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:ID3v1 Comment:XXX'                            ' 00000C5C 000009AB 0000DB0A'
'COMM:iTunNORM:eng'                                 (' 00000C5C 000009AB 0000DB0A 0000A97C 00026555 00032911 00008000 00008000 '
 '0001BD9F 00037AE2')
'TALB' (Album/Movie/Show title)                     'Progsoup 42'
'TBPM' (BPM (beats per minute))                     '117.330'
'TCON' (Content type, a.k.a. Genre)                 'rock-cppex-progressive'
'TDRC' (Recording time)                             '1973'
'TIT2' (Title/songname/content description)         'Anonymus II'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Focus'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPOS' (Part of a set)                              '1/1'
'TRCK' (Track number/Position in set)               '15/9'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '2'
'TXXX:lastfmtags'                                   ['dutch', '70s', 'instrumental', 'rock', 'progressive rock', 'classic rock']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.88 dB'
'TXXX:replaygain_track_peak'                        '0.447081'

========================== row from database ==========================
                                              'id'  1413407
                                            'path'  /data/Music/Bulk/00popandrock-classicprogpsy/PROGSOUP/progsoup 42/2437 focus - anonymus ii.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  1581
                                           'genre'  rock-cppex-progressive
                                        'filesize'  37969998
                                           'mtime'  1620737400
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock classicprogpsy PROGSOUP progsoup 2437 focus anonymus ii rock cppex progressive
                                      'tag_artist'  Focus
                                     'tag_release'  Progsoup 42
                                       'tag_title'  Anonymus II
                                             'bpm'  117.33
                                    'search_title'  'anonymus':1 'ii':2
                                   'search_artist'  'focus':1
                                  'search_release'  '42':2 'progsoup':1
                                     'search_rest'  '2437':3 'anonymus':5 'classicprogpsy':1 'cppex':8 'focus':4 'ii':6 'progressive':9 'progsoup':2 'rock':7
                                    'search_combo'  '2437':8 '42':5C 'anonymus':1A,10 'classicprogpsy':6 'cppex':13 'focus':3B,9 'ii':2A,11 'progressive':14 'progsoup':4C,7 'rock':12
                                    'tag_tracknum'  15
                                      'num_images'  1
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['dutch', '70s', 'instrumental', 'rock', 'progressive rock', 'classic rock']
                                        'tag_date'  1973
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620737400.4921021  (2021-05-11 14:50:00)
                             'size'  37969998